The pressure filtering belt of the belt pressure filter is not easy to deflect when running, and the extrusion shearingeffect is better.
本实用新型的滤带不容易跑偏，并且挤压剪切效果更好。
2
The seed pushing device has the advantages of avoiding damages to seeds due to no shearingeffect generated in a seed pushing process and reducing the possibility of blockage of the seed suction hole.
本发明的有益效果：刮种过程中没有剪切作用，消除了伤种问题，降低了吸种孔堵塞的可能性。
3
This method is realized by using laser grating shearing interferometer and Talbot effect.